Magnetic structure and properties of the honeycomb antiferromagnet [Na(OH2)3]Mn(NCS)3

Geers, Madeleine; Gill, Thomas B.; Burnett, Andrew D.; Bassey, Euan N.; Fabelo, Oscar; Cañadillas-Delgado, Laura; Cliffe, Matthew J.

Abstract

We report the magnetic structure and properties of a thiocyanate-based honeycomb magnet [Na(OH2)3]Mn(NCS)3 which crystallises in the unusual low-symmetry trigonal space group P3̄. Magnetic measurements on powder samples show this material is an antiferromagnet (ordering temperature TN,mag = 18.1(6) K) and can be described by nearest neighbour antiferromagnetic interactions J = −11.07(4) K. A method for growing neutron-diffraction sized single crystals (>10 mm3) is demonstrated. Low temperature neutron single crystal diffraction shows that the compound adopts the collinear antiferromagnetic structure with TN,neut = 18.94(7) K, magnetic space group P3̄′. Low temperature second-harmonic generation (SHG) measurements provide no evidence of breaking of the centre of symmetry.

Citation

Geers, M., Gill, T. B., Burnett, A. D., Bassey, E. N., Fabelo, O., Cañadillas-Delgado, L., & Cliffe, M. J. (2024). Magnetic structure and properties of the honeycomb antiferromagnet [Na(OH2)3]Mn(NCS)3. Physical Chemistry Chemical Physics, 26(22), 15844-15849. https://doi.org/10.1039/d4cp01265h

• Journal Article Type: Article
• Acceptance Date: May 13, 2024
• Online Publication Date: May 14, 2024
• Publication Date: Jun 14, 2024
• Deposit Date: May 25, 2024
• Publicly Available Date: May 29, 2024
• Journal: Physical Chemistry Chemical Physics
• Print ISSN: 1463-9076
• Electronic ISSN: 1463-9084
• Publisher: Royal Society of Chemistry
• Peer Reviewed: Peer Reviewed
• Volume: 26
• Issue: 22
• Pages: 15844-15849
• DOI: https://doi.org/10.1039/d4cp01265h
• Public URL: https://nottingham-repository.worktribe.com/output/35160485
• Publisher URL: https://pubs.rsc.org/en/content/articlelanding/2024/cp/d4cp01265h